Finding a quality power source for a smartphone is a task that requires care, especially when it comes to the popular model Redmi Note 8 Pro. This gadget, released in 2019, is still actively used by millions of users, but time does not spare lithium polymer cells. Capacity reduction, quick discharge and sudden shutdowns are the first signals that the battery life is exhausted.
The market is saturated with offers that sell cheap copies with glued stickers under the guise of original batteries. Buying a low-quality component can lead not only to discomfort from short operating time, but also to the risk of bloating or even fire of the device, which is why the question of "where to buy" becomes critical to the safety of your gadget.
In this article, we will discuss all sales channels in detail, teach you how to distinguish between them. OEM-We will provide you with specific items for searching, you will learn why saving 200 rubles can cost more in the long run.
Why it’s important to look for the original Redmi Note 8 Pro
Xiaomi Redmi Note 8 Pro is equipped with a powerful processor MediaTek Helio G90T, which consumes a significant amount of power. the company's engineers calculated the battery capacity of 4500 mAh (model BN7) specifically for the heat and power consumption of this chipset. Installing a cheap analog violates this balance. The phone's power controller can incorrectly read the charge, which leads to jumps in percentages on the screen or a complete lockdown of charging.
Original batteries undergo strict quality control and are equipped with boards of protection to prevent overheating and overcharging. Copies often lack such systems or use cheap components that degrade over the course of their life. 3-4 The battery is in active use for a month, and the original battery is also in use. BN7 It has a unique hologram and QR-code that is read by the diagnostic system MIUI.
The use of a poor-quality battery also affects the operation of the Quick Charge 4.0 fast charging system. Cheap analogues may not withstand high-power currents, which will cause the phone to go into slow charging mode or will constantly warm up in the area of the camera.
⚠️ Warning: If after replacing the battery, the phone stopped showing percentage of charge or warms up in a switched-off state, immediately remove the new item.
Official channels and authorized service centers
The most reliable, but not always the fastest, way is to contact Xiaomi’s authorized service centers (ASCs), where you are guaranteed to install a certified component with water protection (if it was checked) and factory sealing of the case. The cost of the service will be higher than the market, but you pay for the warranty and security.
Find the nearest ASC is available through the official Mi Service app pre-installed on your smartphone or on the manufacturer's website. In some cases, the center can offer to order a part if it is not available, which will take 3 to 14 days, the best option for those who do not want to risk self-disassembly.
- ✅ Full warranty and detail from the manufacturer.
- ✅ Use of professional sealing equipment.
- ✅ Maintaining repair history in the company database.
However, it is worth considering that for a model released several years ago, the inventory of original components in official warehouses may be limited, in which case managers can offer an alternative or recommend partners, which requires additional attention on your part.
Verified online platforms and marketplaces
Large marketplaces like AliExpress, Ozon, or specialty parts stores like AliParts, Toppets, offer a huge selection. It's important to be able to filter offers. Look for sellers with a rating of at least 95% and a lot of positive reviews with photos. A key marker of reliability is the presence in the description of the exact BN7 article and mentioning the multimeter check before sending.
On Chinese platforms, lots marked "Original Quality" or "High Copy" are often found, marketing ploys meaning a high-quality copy, but not the original. The real Xiaomi Original is sold either in a hologram box or in a sealed antistatic package with the brand logo. The price of the original rarely drops below $10-12, without shipping being taken into account.
When ordering on marketplaces, pay attention to the date of production. Lithium polymer batteries degrade even in stock. If the seller managed to find a new old stock (NOS) from 2019-2020, this is ideal, but more often you will get a battery that was produced 6-12 months ago, which is quite acceptable.
💡
When ordering on AliExpress, choose delivery from a warehouse in your country (for example, "Delivery from Russia") to avoid long waits and problems with customs, as well as faster return of goods in the event of a marriage.
How to distinguish the original BN7 from a fake: visual inspection
Visual identification is the first step of testing. The original battery for the Redmi Note 8 Pro (model BN7) has a number of specific features that are almost impossible to fake in a homely environment. First of all, pay attention to the plume: it should be elastic, dark blue or black, without cracks or cracks.
On the front of the original, there is always the MI logo, made with a high-quality print that does not erase the nail. Under the logo, the battery type (Li-polymer Battery), voltage (3.85V) and capacity (4400mAh/16.94Wh - the real capacity is slightly less than the advertised 4500).
The back of the original battery is usually covered with a black protective film with a repetitive Xiaomi logo or technical warnings in several languages. Copies often have just a black matte surface or poor-quality print that is lubricated. Also note the connection connector: in the original contacts are golden, smooth, without oxides.
| Characteristics | Original Xiaomi BN7 | Quality copy | Cheap forgery |
|---|---|---|---|
| Articulated | Aye (BN7) | Often | Absent or unfaithful |
| MI logo | Silver, crisp. | Maybe it's dull. | Erased or missing |
| Weight. | ~95-100 grams | ~85-90 grams | Less than 80 grams |
| schleife | Soft, not sulking. | Hardened | Very tough, brittle. |
Multimeter test
Programmatic verification and diagnostic codes
Modern Xiaomi smartphones can recognize the installed battery. Once the device is replaced and turned on, the system can check the battery ID. Use the engineering menu to check. Dial the code # # #6485## in the Phone application.
In the menu, find the parameters. MB_06 (battery status; and MB_00 (If the battery is original or quality copy with the chip, the system will show the status of "Good". In some cases, especially on global firmware, a message “Battery not certified” may be displayed if the memory chip does not contain the original Xiaomi keys, even if the battery itself is of high quality.
Also worth installing is the Google Play AccuBattery or Ampere app, which allows you to estimate the actual capacity and charging/discharge rate. The original battery should show charge currents in the range of 1500-2000 mA when you connect a powerful power supply, while bad copies can limit the current to 500-800 mA.
⚠️ Note: A message saying "Battery not certified" doesn't always mean that the battery is bad. It may be the original battery, but without flashing the chip to your specific region or version of the software.
Instructions for safe self-replacement
If you decide to save on the services of a master and replace the battery yourself, you will need a set of tools: a suction cup, a mediator (plastic blade), a dryer for softening the glue and a new glue B-7000 or T-7000 for fixing.The process requires accuracy, since the back cover of the Redmi Note 8 Pro is glass and easily beats.
First, heat the perimeter of the back cover with a hair dryer to 60-70 degrees (hold your hand to keep it warm). With a suction cup, lift the edge and insert the mediator. With a tool, drive around the perimeter, cut the adhesive layer. Be careful in the bottom where the fingerprint scanner plume is located - it is easy to damage.
After removing the lid, unscrew the safety bar screws, unplug the battery plume and remove the old battery.Put the new battery in, plug the plume before the characteristic click and check the phone's turn on before final assembly.
☑️ Checklist before assembly
💡
The main challenge when replacing is to gently remove the glass lid without chipping and maintain the integrity of the fingerprint scanner plume. Take your time and use enough heat.